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Doubles in session


Current system
22157-1809
LDS 4950


Nearby doubles
44' : 22185-1751
ARA 507

44' : 22155-1725
ITF 161

47' : 22126-1802
HDS3153

55' : 22120-1802
UC 4676AB

71' : 22196-1853
RST3298

77' : 22205-1844
KPP 508

77' : 22206-1736
ARA 508

79' : 22151-1926
UC 4695

80' : 22191-1706
HJ 3104

81' : 22120-1708
HJ 3095

83' : 22148-1930
UC 4691

90' : 22219-1821
RST3299

92' : 22095-1827
HJ 3092

93' : 22092-1802
UC 4667

94' : 22127-1646
UC 4682

95' : 22224-1817
TDT3494

98' : 22090-1754
LDS6379

104' : 22085-1812
ARA 506

104' : 22085-1757
GWP3128

104' : 22217-1710
HDS3168

105' : 22093-1859
HU 284

109' : 22082-1825
GWP3126

110' : 22183-1625
UC 4711

126' : 22127-2006
STN 57

128' : 22075-1858
GWP3125

131' : 22233-1654
ITF 177



Selections
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Binary Systems
Triple Systems
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Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

22157-1809 LDS 4950

 
 
22h 15m 44.52s -18° 08' 41.0" P.A. 206.00 sep 35.4 mag 9.66,15.13 Sp K2V dist. 47.3 pc (154.29 l.y.)
 
 
Coord 2000 22157-1809 Discov num LDS4950 Comp Coord arcsec 2000 22 15 44.52 -18 08 41.0
Date first 1960 Date last 2015 Obs 6
Pa first 205 Pa last 205.7 P.A. Now (θ) 205.7°
Sep first 35.0 Sep last 35.448 Sep. Now (ρ) 35.448"
Mag pri 9.66 Mag sec 15.13 delta mag (ΔM) 5.47 Spectral class K2V (yellow-orange)
Pri motion ra +159 Sec motion ra +170
Pri motion dec -161 Sec motion dec -166
Notes N (See Notes)
rPM=0.051 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Aquarius SAO 164960 HIP 109918 Tycho2 6381-00042-1
Gaia DR2 6822778720492301312 HD 211188 BD BD-18 6093 Distance 47.3
Distance ly 154.29
 
 
WDS 22157-1809 LDS 4950 : NOTES
 
 
discov_num notes refcode
LDS4950 NLTT 53321/53320 Chm2004
 
 
REFERENCES
 
 
refcode metd author reference
Chm2004 E - Chaname, J. & Gould, A. 2004ApJ...601..289C
Chm2004 ApJ 601, 289, 2004
Chm2004 (Photometry, coordinates, and astrometry from rNLTT. Astrometry from early
Chm2004 versions of 2MASS and UCAC, with date given only as "circa 2000". Measures
Chm2004 identical to discovery observations - predominantly close pairs - were assumed
Chm2004 not new observations, so not included in WDS. Similar concerns when primary and
Chm2004 secondary magnitudes or proper motions were the same.)
 
 
DISCOVERER
 
 
idgroup discov author
1 LDS Luyten p.m. catalog (from additional DD list)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
22157-1809 LDS4950 2000 3 206 35.3 9.66 15.13 K2V D 221544.52-180841.0
22157-1809 LDS4950 2010 5 206 35.5 9.66 15.13 K2V N 221544.52-180841.0
22157-1809 LDS4950 2015 6 206 35.4 9.66 15.13 K2V N 221544.52-180841.0

If you need more information about this double, apply for a data request form to the WDS.

 
 
WDS 22157-1809 LDS 4950 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 22157-1809 LDS 4950 : MEASURES
 
 
No records found.

 
 
WDS 22157-1809 : VIRTUAL EYEPIECE
 
 

22157-1809 LDS4950A mag 9.66 Sp K2V 22157-1809 LDS4950B sep 35.1 P.A. 204.60 mag 15.13 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 22157-1809 : ALADIN DSS IMAGE @ 22h 15m 44.52s -18° 08' 41.0"
 
 
 
 
WDS 22157-1809 LDS 4950 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

22157-1809 LDS4950 distance=0' 22185-1751 ARA 507 distance=44' 22155-1725 ITF 161 distance=44' 22126-1802 HDS3153 distance=47' 22120-1802 UC 4676AB distance=55' 22120-1802 UC 4676AC distance=55' 22196-1853 RST3298 distance=71' 22205-1844 KPP 508 distance=77' 22206-1736 ARA 508 distance=77' 22151-1926 UC 4695 distance=79' 22191-1706 HJ 3104 distance=80' 22120-1708 HJ 3095 distance=81' 22148-1930 UC 4691 distance=83' 22219-1821 RST3299 distance=90' 22095-1827 HJ 3092 distance=92' 22092-1802 UC 4667 distance=93' 22127-1646 UC 4682 distance=94' 22224-1817 TDT3494 distance=95' 22091-1831 BU 170BC distance=97' 22090-1754 LDS6379 distance=98' 22091-1831 BU 170AD distance=99' 22091-1831 BU 170A,BC distance=99' 22085-1812 ARA 506 distance=104' 22085-1757 GWP3128 distance=104' 22217-1710 HDS3168 distance=104' 22093-1859 HU 284 distance=105' 22082-1825 GWP3126 distance=109' 22183-1625 UC 4711 distance=110' 22127-2006 STN 57 distance=126' 22075-1858 GWP3125 distance=128' 22233-1654 ITF 177 distance=131' 22079-1658 HU 492 distance=134' 22133-2019 UC 4685 distance=135' 22066-1854 UC 4651 distance=138' 22059-1806 HJ 3086 distance=141' 22146-1549 LLO 22 distance=141' 22185-2034 RST3296 distance=151' 22263-1839 BHA 52AB distance=155' 22052-1850 TDT3330 distance=156' 22127-1539 ARA 132 distance=156' 22072-1951 ARA1236 distance=159' 22223-2019 BRT1569 distance=160' 22043-1806 UC 4641 distance=164' 22254-1641 NSN 798 distance=164' 22219-1550 KPP 557 distance=165' 22117-2044 FMR 18 distance=166' 22194-2048 RST3297 distance=168' 22225-1551 LEO 29 distance=169' 22179-1521 UC 4709 distance=171' 22059-1946 B 2900 distance=171' 22143-2104 BU 171CD distance=175' grafico limitrofi
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show 22157-1809 LDS4950 206 35.4
Show 22185-1751 ARA 507 197 5.9 44
Show 22155-1725 ITF 161 294 6.3 44
Show 22126-1802 HDS3153 83 0.1 47
Show 22120-1802 UC 4676 AB 255 58.8 55
Show 22120-1802 UC 4676 AC 284 1.7 55
Show 22196-1853 RST3298 11 0.4 71
Show 22205-1844 KPP 508 139 4.8 77
Show 22206-1736 ARA 508 109 8.4 77
Show 22151-1926 UC 4695 212 47.6 79
Show 22191-1706 HJ 3104 69 11.0 80
Show 22120-1708 HJ 3095 150 7.3 81
Show 22148-1930 UC 4691 322 13.1 83
Show 22219-1821 RST3299 119 0.6 90
Show 22095-1827 HJ 3092 342 28.6 92
Show 22092-1802 UC 4667 353 22.1 93
Show 22127-1646 UC 4682 18 17.3 94
Show 22224-1817 TDT3494 301 0.7 95
Show 22091-1831 BU 170 BC 24 0.7 97
Show 22090-1754 LDS6379 349 354.3 98
Show 22091-1831 BU 170 AD 28 81.3 99
Show 22091-1831 BU 170 A,BC 40 161.0 99
Show 22085-1812 ARA 506 9 14.8 104
Show 22085-1757 GWP3128 221 67.2 104
Show 22217-1710 HDS3168 156 0.4 104
Show 22093-1859 HU 284 114 3.5 105
Show 22082-1825 GWP3126 91 19.9 109
Show 22183-1625 UC 4711 351 16.9 110
Show 22127-2006 STN 57 96 10.0 126
Show 22075-1858 GWP3125 43 72.9 128
Show 22233-1654 ITF 177 197 22.6 131
Show 22079-1658 HU 492 193 0.4 134
Show 22133-2019 UC 4685 4 19.2 135
Show 22066-1854 UC 4651 73 37.4 138
Show 22059-1806 HJ 3086 194 13.8 141
Show 22146-1549 LLO 22 65 22.3 141
Show 22185-2034 RST3296 323 0.3 151
Show 22263-1839 BHA 52 AB 172 7.4 155
Show 22052-1850 TDT3330 14 2.5 156
Show 22127-1539 ARA 132 353 13.9 156
Show 22072-1951 ARA1236 356 5.7 159
Show 22223-2019 BRT1569 192 2.7 160
Show 22043-1806 UC 4641 152 9.6 164
Show 22254-1641 NSN 798 334 43.8 164
Show 22219-1550 KPP 557 89 5.2 165
Show 22117-2044 FMR 18 305 12.9 166
Show 22194-2048 RST3297 160 0.3 168
Show 22225-1551 LEO 29 92 4.8 169
Show 22179-1521 UC 4709 237 24.9 171
Show 22059-1946 B 2900 194 13.4 171
Show 22143-2104 BU 171 CD 255 12.3 175

 
 
WDS 22157-1809 : COMPONENTS
 
 
  A
B pa=204.6°
sep=35.12"
 
 
22157-1809 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 221544.52-180841.0 Mag 9.66 Spectral class K2V (yellow-orange)
PmRA 159.00 PmDE -161.0 SAO 164960 HIP 109918
Tycho2 6381-00042-1 HD 211188 BD BD-18 6093
Tycho2
Tycho2 6381-00042-1 Pflag RAmdeg 333.93550887 DEmdeg -18.14471179
PmRA 160.8 PmDE -158.8 E RAmdeg 21 E DEmdeg 28
E pmRA 2.2 E pmDE 2.2 EpRAm 1990.16 EpDEm 1988.88
Num 6 Q RAmdeg 0.6 Q DEmdeg 0.5 Q pmRA 0.6
Q pmDE 0.5 BTmag 10.822 E BTmag 0.055 VTmag 9.737
E VTmag 0.032 Prox 999 TYC T HIP 109918
CCDM RAdeg 333.93512111 DEdeg -18.14433917 EpRA 1990 1.78
EpDE 1990 1.57 E RAdeg 21.6 E DEdeg 28.5 Posflg
Corr -0.2
SAO
SAO 164960 DelFlag RA1950 PmRA1950 0.0114
DE1950 PmDE1950 -0.148 Vmag 9.1 SpType K0
Double code Source 22 CatNum 9460 DM BD-18 6093
DMcomp BDsup HD 211188 M HD 0
GC RA1950rad 5.81633778 DE1950rad -0.32099751 PmRA2000 0.0115
PmDE2000 -0.151
Hipparcos
Catalog H HIP 109918 Proxy RAhms 22 15 44.42
DEdms -18 08 39.6 Vmag 9.66 VarFlag R Vmag G
RAdeg 333.935 DEdeg -18.1443 AstroRef Plx 20.6
CCDM N CCDM Nsys Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 211188 BD BD-18 6093
CD CP Dm number -18 6093 VIred 0.95
SpType K2V R SpType Coord arcsec 2000 221544.42-180839.6
Hipparcos 2
HIP 109918 Sn 5 So 0 Nc 1
RArad 5.8282670128 DErad -0.3166783475 Plx 21.14 PmRA 163.64
PmDE -158.65 E RArad 1.23 E DErad 1.08 E Plx 1.48
E pmRA 1.73 E pmDE 1.28 Hpmag 9.7944 E Hpmag 0.0018
SHp 0.015 VA 0 BV 0.903 E BV 0.01
VI 0.95
CCDM
Ccdm 22157-1809 RComp Comp A Note1
Note2 Discov num DRAs 2.51 DDEs 20.5
R dRAs 81 Year Theta Rho
Obs 2 Vmag 9.8 Sp PmNote @
PmRA 164 PmDE -151 Dm number -18 6093 Cat1 BD
Name2 164960 Cat2 SAO HD 211188 M HD
ADS BDS M ADS BDS N IDS IDS 22103S1839A
HIC 109918
 
 
22157-1809 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 221543.50-180912.9 Mag 15.13 PmRA 170.00
PmDE -166.0 Calc delta mag 5.47 Calc coord yes
CCDM
Ccdm 22157-1809 RComp Comp B Note1
Note2 Discov num LDS4950 DRAs DDEs
R dRAs Year 1960 Theta 205 Rho 35.0
Obs 1 Vmag 16.1 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 22103S1839B
HIC